Patents by Inventor Joseph I. Varga

Joseph I. Varga has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Image toning of black-and-white images formed utilizing color dye forming couplers
    Patent number: 5418116
    Abstract: The invention relates to providing a method of toning a black-and-white image formed with color couplers comprising providing a developed image, applying a hue changing material to said print wherein the hue of at least dye in said print is changed.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: May 23, 1995
    Assignee: Eastman Kodak Company
    Inventors: Gary R. Gottschalk, Joseph I. Varga